Insecticide.



UNITED STATES Patented December 1, 1903.

PATENT OFFICE.

JOHN HAZEL YELVINGTON AND JOSEPH EDWARD YELVINGTON, OF NOOATEE, FLORIDA.

INSECTICIDE.

LEECIFICATION forming part of Letters Patent No. 745,950, dated December 1, 1903. Application filed September 1, 1903. Serial 110.171.5763. (No specimens.)

To all whom, it nuty concern:

Be it known that we, JOHN HAZEL YELVING- TON and JOSEPH EDWARD YELVINGTON, citizens of the United States, residing at Nocatee, in the county of De Soto and State of Florida, have invented an Improved Insecticide, of which the following is a full and exact specification.

We have produced an improved preparation for destroying insects that infest and injuriously afiect fruit-trees, vegetables, and cultivated plants; also, forinvigoratiug such natural products and promoting their growth.

The composition of the preparation is as follows: Take caustic potash, (commercial,) forty pounds; sulfur, thirty pounds; common salt, eight pounds; whale-oil soap, twenty pounds; muriatic acid, (commercial) one and one-half pints; nitric acid, (commerciah) one and one-half pints; water, forty gallons. The potash, sulfur, salt, and soap are first mixed and boiled until all the solid particles of the ingredients have become thoroughly dissolved. Water is then added in sufficient quantity to cool the solution-say to 100 Fahrenheit. The muriatic and nitric acids are next added, and the liquid mass is well stirred or otherwise agitated to effect thorough intermix'ture. The remainder of the water is then added and the agitation renewed. It is to be noted that the quantity of water used to form the solution may be varied greatly and much more than the other ingredients, since it is obvious that its function is mainly that of a solution for the chemical substances, and that the strength of the solution ultimately obtained will vary corresponding to the proportion of water added. The solution is then ready for use by application to trees, vegetables, and plants. For this purpose one part of the solution is mixed with forty parts of waterthat is to say, one gallon to forty gallons of water. The application may be made in the same way as usual in the case of other liquid insecticides.

The solution has been employed with remarkably successful results, especially on oran ge-trees, pineapples, tomatoes, eg -plants, and other vegetables. It acts not only as a most efficient insecticide and fungicide, but also invigorates and promotes the healthy growth and development of the trees and plants in a high degree.

WVhat we claim is 1'. The improved insecticide, composed of caustic potash, sulfur, salt, Whale-oil soap, muriatic and nitric acid, and water, insubstantially the proportions specified.

2. The improved insecticide composed of the following ingredients in the proportions specified,towit: causticpotash,fortypounds; sulfur, thirty pounds; common salt, eight pounds; whale-oil soap, twenty pounds; muriatic acid and nitric acid, each one and onehalf pints; and water in sufficient quantity to produce thorough solution of the soluble constituents named.

JOHN HAZEL YELVINGTON.

JOSEPH EDWARD YELVINGTON.

Witnesses:

G. L. CARLTON, MARY A. More 

